What is the key difference between Precleared Contact Check and Deliveriq MCP?

Precleared Contact Check belongs to the Communication category with cloud HTTP/SSE execution, while Deliveriq MCP belongs to the Communication category with local stdio execution.

How do I install Precleared Contact Check or Deliveriq MCP in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Precleared Contact Check and Deliveriq MCP free or paid?

Precleared Contact Check operates under a Free / Open Source model (No auth required). Deliveriq MCP operates under a Freemium model (API Key required).

Which MCP server has more tools and community activity?

Precleared Contact Check lists 2 tools with 0 views and 0 GitHub stars. Deliveriq MCP lists 6 tools with 2 views and 1 GitHub stars.

Can I use both Precleared Contact Check and Deliveriq MCP together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Precleared Contact Check vs Deliveriq MCP

In-depth architectural comparison of the Precleared Contact Check and Deliveriq MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Precleared Contact Check

Communication · Remote HTTP/SSE

Quality: 51/100 (Good) | Auth: No auth required

Deliveriq MCP

Communication · Local stdio

Quality: 41/100 (Fair) | Auth: API Key required

Verdict Summary: Choose Precleared Contact Check if you need specialized Communication tools running via a hosted cloud SSE transport. Choose Deliveriq MCP if your workspace requires Communication integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Precleared Contact Check when:

You need dedicated capabilities in the Communication domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: PRECLEARED_API_KEY, PRECLEARED_API_BASE, PRECLEARED_TIMEOUT_MS.
Primary tools included: contact_check, verify_receipt.

Explore Precleared Contact Check Details

Choose Deliveriq MCP when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Freemium).
You have access to required keys: DELIVERIQ_API_KEY.
Primary tools included: 12 MCP tools, Email verification, Sender reputation checks.

Feature & Specification Comparison

Specification	P Precleared Contact Check Communication	Deliveriq MCP Communication
Summary	Cold email compliance check for outreach agents: GDPR, PECR, CAN-SPAM, CASL verdict, signed receipt.	Email deliverability for AI agents. 12 tools: verify, DNSBL, DMARC, spam-trap, finder.
Category & Scope	Communication	Communication

Tools & Capabilities Breakdown

Precleared Contact Check Tools (2)

contact_check

Takes a recipient email or domain, your sender country (GB or US), the pitch and where the address came from. Returns `verdict` (ok_to_email, consent_needed, blocked or unknown), `confidence`, the rule quoted with its source, `footer_text` (what the email's footer must include, not wording to paste…

verify_receipt

Takes a receipt id and returns the receipt with its hashes, Ed25519 signature and public key.

Deliveriq MCP Tools (6)

12 MCP tools

Email verification

Sender reputation checks

DMARC analysis

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Precleared Contact Check Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "precleared-contact-check": {
      "url": "https://precleared.dev/mcp"
    }
  }
}

Deliveriq MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "deliveriq-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@deliveriq/mcp"
      ],
      "env": {
        "DELIVERIQ_API_KEY": "YOUR_DELIVERIQ_API_KEY_HERE"
      }
    }
  }
}

Frequently Asked Questions

Precleared Contact Check is categorized under Communication and uses a remote streaming HTTP/SSE transport. In contrast, Deliveriq MCP belongs to Communication using local stdio subprocess. Select Precleared Contact Check when you need capabilities focused on communication and Deliveriq MCP when you require tools for communication.

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